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Method of CO and/or CO.sub.2 hydrogenation to higher hydrocarbons using doped mixed-metal oxides

United States Patent

March 21, 2017
View the Complete Patent at the US Patent & Trademark Office
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Pyrochlore-based Catalysts for Syngas-Derived Alcohol Synthesis
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A method of hydrogenation utilizing a reactant gas mixture comprising a carbon oxide and a hydrogen agent, and a hydrogenation catalyst comprising a mixed-metal oxide containing metal sites supported and/or incorporated into the lattice. The mixed-metal oxide comprises a pyrochlore, a brownmillerite, or mixtures thereof doped at the A-site or the B-site. The metal site may comprise a deposited metal, where the deposited metal is a transition metal, an alkali metal, an alkaline earth metal, or mixtures thereof. Contact between the carbon oxide, hydrogen agent, and hydrogenation catalyst under appropriate conditions of temperature, pressure and gas flow rate generate a hydrogenation reaction and produce a hydrogenated product made up of carbon from the carbon oxide and some portion of the hydrogen agent. The carbon oxide may be CO, CO.sub.2, or mixtures thereof and the hydrogen agent may be H.sub.2. In a particular embodiment, the hydrogenated product comprises olefins, paraffins, or mixtures thereof.
Shekhawat; Dushyant (Morgantown, WV), Berry; David A. (Morgantown, WV), Haynes; Daniel J. (Morgantown, WV), Abdelsayed; Victor (Morgantown, WV), Smith; Mark W. (Morgantown, WV), Spivey; James J. (Baton Rouge, LA)
U.S. Department of Energy (Washington, DC)
14/ 834,487
August 25, 2015
GOVERNMENT INTERESTS The United States Government has rights in this invention pursuant to the employer-employee relationship of the Government to the inventors as U.S. Department of Energy employees and site-support contractors at the National Energy Technology Laboratory.